Getting yourself a free beer in a bar is as easy as knowing a few tricks. The Slow-Mo Guys are back with their incredible Phantom Flex to show you how to break the bottom of a beer bottle without just by tapping the top.
The trick involves slapping the top of a bottle (filled with water, mind) hard enough that the downward force projects air towards the bottom of the bottle. When the air breaches the vacuum bubble created by the force, it slams the bottom of the bottle, smashing the bottom off it perfectly. Be careful if you want to try this yourself!